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B. H. TAYLOR.

SPRING PACKING FOR PISTONS AND OTHER ANALOGOUS USES.

Patented Mar. 3, 1885.

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ROBERT HEATOF TAYLOR, OF SHEFFIELD, COUNTY OF YORK, ENGLAND.

SPRlNG-PACKING FOR PISTONS AND OTHER ANALOGOUS USES.

SJPECIFICATION forming part of Letters Patent No. 313,251, dated March 3, 1885.

Application filed July 24, 1884. (No model.) Patented in England January 28, 1884, No.2;252; in France June '27, 1884,11'0. 163,002,

- and in Germany June 29, 1884, No. 30,178.

To a whom it may concern Be it known that I, ROBERT HEATON TAY- LOR, a subject of the Queen of Great Britain and Ireland, and a resident of Sheffield, in the county of York, England, engineer, have invented certain Improvements in Spring- Packing for Pistons and other Analogous Uses, (for which I have obtained a British patent, No. 2,252, dated January 28, 1884.; German Patent No. 30,178, dated June 29, 1884, and French Patent No. 163,002, June 27, 1884,) of which the following is a specification.

This invention relates to certain improvements in or applicable to the manufacture or construction and improved formation of spring-packing for expanding or distending the rings of pistons and analogous parts of steam-engines, air-pumps, and other apparatus.

The especial object of the invention is to produce such packing of an improved formation and of considerable strength, great lightness, and perfect evenness of hearing at all necessary to illustrate such parts on the accompanying drawings.

On the accompanying drawings, Figure 1 represents a sectional elevation of the rings of a piston with the improved packing in position between them. Figs. 2, 3, and 4 represent similar views, respectively, of one of the piston-rings and of one of the springrings and thespring composing such improved packing. Fig. 5 represents a plan view of the parts shown in Fig. 1. Fig. 6 represents a similar view to that of Fig. 1, but illustrates a modified formation of the packing. Fig. 7 represents in section one of the springrin'gs illustrated in Fig. 6. Fig. 8 represents afurther modified formation of the spring; and Fig. 9 represents in plan view one-half of the spring-ring and one-half of the spring, respectively, illustrated in Figs. 7 and 8.

The piston-rings 1 may be of any-usual forinternal flange, 2, and preferably with a squared inner-seating, 3. The openings in the rings may be fitted with gluts 4 in any usual manner.

The improved packing comprises a duplicate arrangement of spring-rings 5, which are seated within the said seatings of the pistonrings, and an intermediate spring, 6, which gives the radial and Vertical expansive act-ion to thesaid spring-rings,whichactdirectly upon the piston-rings. of anysuitable hard elastic metalsuch as cast iron, steel, or gun-metaland of such a conformation as will allow of their being fitted within the said seatings of the pistonrings, and they are formed at equal or irregular distances apart,with inner projecting ribs or bars, 7, arranged radially with their faces against which the spring bears at an angle, preferably, of forty-five degrees, as illustrated in Figs. 1, 3, and 5; or, as illustrated in Figs. 6, 7, and 9,1 the ribs or bars 7 may be formed externally of the spring-rings, so as to have their hearings in the said sea-tings of the piston-rings, the plane part of each spring-ring then being angularly-arranged in like manner, ashereinbefore referred to, for the springto bear against.

WVhen spring-rings of any modification of this formation are seated within the pistonrings, their inner bearing-surfaces thus form an angle of ninety degrees; but I desire it should be understood thatI do not limit myself to this precise angle, which is more advisable than it is arbitrary, and that the angle formed by such bearing-surfaces may either be somewhat more obtuse or acute than that of ninety degrees.

The spring is preferably made of steel,either cast or rolled,0r tempered, if required,and of a right-angled formation as regards its external edge, or of such an angular formation as that it will fit between the said spring-rings, as shown in Fig. 6, in such a manner as that it will give an equal expansion radially and vertically to both of such spring-rings.

It is preferred to make the springs with the 7 back or inner circumference hollowed, and of a greater sectional strength or thickness at the The spring-rings are made part opposite the openingof the spring than at the opening; or the springs may be formed with transverse ribs or stays 8 at parts, as shown in Figs. 1 and 4; or slots 9 may be punched in the spring at suitable distances .that of the piston-rings, so that when the springs are compressed within the springrings, and the latter within the piston-rings, and the piston-cover is bolted down, a suflicient and even distention of the piston-rings is efl'ected, insuring a perfectly tight and elasticjoint, and sufficient resiliency is left to insure the continuance of the same action between the parts as the piston-rings become worn.

I am aware of Goodfellows British Patent No. 7,912 of 1838, and do not wish to claim anything therein described; but

I claim as my invention- -In a spring-packing, the combination of the double-acting spring 6, having opposing angular bearing-faces, with corresponding springrings, 5, having ribs 7, substantially as and for the purpose set forth.

In testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

R. H. TAYLOR. Witnesses:

RBT. J AMES, J osH. FOWDEN. 

